Card text

As often as you like during your turn (before your attack), you may attach a Energy card from your hand to 1 of your Pokémon. Put 1 damage counter on that Pokémon. This power can't be used if Blastoise ex is affected by a Special Condition.

Hyper Whirlpool はかいのうずしお

80

Flip a coin until you get tails. For each heads, your opponent discards an Energy card attached to the Defending Pokémon.

Trivia

The effect of Hyper Whirlpool was later errata'd so that the player using the attack was the one who chose the Energy card to be discarded, not the player's opponent.

Incidentally, of the three final evolutions of Kanto starters made into Pokémon-ex in EX FireRed & LeafGreen, this is the only one without an attack roughly analogous to its Base Set counterpart, as well as the only one not to have two attacks.